Green Day’s Billie Joe Armstrong In Rehab Until 2013?

After an f-bomb-laced tirade at a show last month, Green Day frontman Billie Joe Armstrong entered rehab for what his reps called “substance abuse.” Now comes news that the singer could be away for some time.

“He’s under medical supervision for a while to get him clean,” said Rob Cavallo of Warner Bros. in an interview with Rolling Stone. “His doctors are still evaluating. All I can say is I don’t know if we’ll see him before or after Christmas. It’s basically undetermined when he’ll be back.”

Claudia Suarez Wright, the ex-wife of Green Day drummer Tre Cool, claimed Armstrong had been drinking all day leading up to his meltdown at the iHeartRadio festival in Las Vegas. “When he was in Vegas he was drinking a lot,” she told Celebuzz. “The night of the show he had been drinking. In Las Vegas there’s a lot of temptation to drink and it’s tough to be around when you’re fighting against it.”

This comes as bad news for the Green Day family. Not only do they lose their valued brother-in-arms, but the band has had to cancel tour dates right as their punk-rock trilogy of albums hits shelves. Metallica will replace the band as the headliner for New Orleans’ Voodoo Fest on October 27, and as of now, the trilogy schedule will continue as planned. ¡Dos! sees a release Nov. 12 and ¡Tré! comes out Jan. 14. [NME]